QSolid Successfully Holds 8th Collaborative Meeting at the University of Stuttgart

From 25 to 27 February 2026, the QSolid consortium gathered at the University of Stuttgart for its 8th Collaborative Meeting. Around 100 team members travelled to the capital of Baden-Württemberg to share progress, discuss challenges, and align on the next steps toward the project’s completion in December 2026. As the penultimate consortium meeting, the event marked an important milestone and set the stage for the final project phase.

Preparing for the Final Phase

The meeting was opened by Prof. Maria Daghofer, Vice Dean of the Department of Physics at the University of Stuttgart. The first day focused on the project’s critical path and key system integration challenges. Over the course of the three days, all partners presented updates from their respective work packages, covering topics such as quantum chip architecture, scalability, control electronics, error mitigation, and cloud access. The discussions highlighted both the significant progress achieved and the coordinated efforts required to bring the QSolid quantum computer to full maturity.

Highlight Talk on Novel Two-Qubit Gates

A particular highlight of the second day was the keynote lecture by Simon Geisert (KIT), who presented a novel two-qubit gate based on Stückelberg interference and mediated by a tunable coupler. The approach enables fast and precisely controllable gate operations via interferometric modulation. The gate has been successfully demonstrated on the modular KIT processor as well as on the QSolid demonstrator. Upcoming work will focus on detailed quantum state characterisation and performance evaluation through benchmarking.

Strengthening Collaboration

In addition to plenary sessions, the programme included dedicated breakout sessions for each work package and a poster session, providing a good opportunity for fruitful scientific exchange. The discussions were continued during a shared dinner featuring traditional Swabian cuisine. With strong progress across all technical areas and a clear roadmap for the months ahead, the 8th Collaborative Meeting reaffirmed QSolid’s commitment to delivering a quantum computer with enhanced-error correction by the end of the year.

Group Photo of the QSolid Consortium

Our Coordinator Frank Wilhelm-Mauch (FZJ)

Highlight Talk by Simon Geisert (KIT)

Meet up during the coffee break (1)

Meet up during the coffee break (2)

Meet up during the coffee break (3)